Like michaelochurch, I think this is interesting and hope it works out. That said, my immediate thought is "what does it take to become one of those core committee members?"

Read into that what you will ;-)

The other part I think worth a cautionary mention is that you appear to use the words management and leadership as though they are the same. They are not. It's a cliché, but it describes the difference well -

If there's a team of people clearing a path through the jungle with machetes, the manager's job is to make sure the machetes are sharp, the workers have enough water, and generally that they keep clearing a path.

The leader however, climbs a tree and looks around to make sure the jungle is being cleared in the right place.

Lastly, you speak of accountability. And yet you do not mention authority. The one cannot exist without the other. I've had accountability in every single management role I've had and never the authority to run the team or project as I saw fit. There's an imbalance there that has always spelt epic fail.